TW201511445A - Power supply conversion system and method of controlling the same - Google Patents
Power supply conversion system and method of controlling the same Download PDFInfo
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- TW201511445A TW201511445A TW102132156A TW102132156A TW201511445A TW 201511445 A TW201511445 A TW 201511445A TW 102132156 A TW102132156 A TW 102132156A TW 102132156 A TW102132156 A TW 102132156A TW 201511445 A TW201511445 A TW 201511445A
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- power supply
- supply device
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is DC
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
- G05F1/563—Regulating voltage or current wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices including two stages of regulation at least one of which is output level responsive, e.g. coarse and fine regulation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
本發明係有關一種電源供應轉換系統及其控制方法，尤指一種對負載供電軟性轉換之電源供應轉換系統及其控制方法。The invention relates to a power supply conversion system and a control method thereof, in particular to a power supply conversion system for load power supply soft conversion and a control method thereof.
為了維持供電的穩定度與可靠度，能夠當電源發生不正常中斷或是不穩定供電時，還能夠擔負起暫時緊急供應電源的能力，因此，除了主電源供應之外，還需要有備用電源的支援，才能夠達到不斷電的供電方式。當主電源(通常為市電)正常供電時，該主電源係對負載供電，同時，該主電源也對該備用電源(係可為充電電池)進行充電或儲能的操作，以因應當該主電源發生異常供電時，能夠即時地切換為該備用電源對負載提供持續性供應。再者，一旦該主電源恢復正常供電時，對負載供電的任務則由該備用電源轉換回該主電源負責。In order to maintain the stability and reliability of the power supply, it can also assume the ability to temporarily supply power urgently when the power supply is abnormally interrupted or unstable. Therefore, in addition to the main power supply, a backup power supply is required. Support, in order to achieve the power supply mode of continuous power. When the main power source (usually the mains) is normally powered, the main power source supplies power to the load, and the main power source also charges or stores the backup power source (which can be a rechargeable battery), so that the main When the power supply is abnormally powered, it can be switched to the backup power supply to provide a continuous supply of the load. Moreover, once the main power source returns to normal power supply, the task of powering the load is responsible for switching back to the main power source.
惟，在現有實務操作中，通常由於直接瞬間地由該備用電源切換回該主電源供電，以對負載提供總系統負載所需，然而，由於瞬間切斷該備用電源所產生的暫態湧浪電流(inrush current)，並且造成輸入電源產生電壓驟降(voltage dip)，導致系統當機(shut down)而必須重新開機所引起的彈跳(re-bounce)異常，甚至造成對系統使用壽命的損害。However, in the existing practical operation, it is usually required to directly switch back to the main power supply from the standby power source to provide the total system load to the load, however, due to the instantaneous swell caused by the instantaneous power supply being cut off. Inrush current, and causing a voltage dip in the input power supply, causing the system to shut down and re-bounce the abnormality caused by the restart, and even cause damage to the service life of the system. .
因此，如何設計出一種電源供應轉換系統及其控制方法，透過對負載供電軟性轉換，以提高供電穩定度與可靠度、降低電源切換所產生的暫態湧浪電流，以提高系統使用壽命，並且提高對該負載供電的強韌性，乃為本案創作人所欲行克服並加以解決的一大課題。Therefore, how to design a power supply conversion system and its control method, through the soft conversion of the load power supply, to improve the power supply stability and reliability, reduce the transient surge current generated by the power supply switching, thereby improving the service life of the system, and Increasing the toughness of the power supply to the load is a major issue that the creators of the case have tried to overcome and solve.
本發明之一目的在於提供一種電源供應轉換系統，以克服習知技術的問題。因此本發明之該電源供應轉換系統係接收一外部電源，並且對一負載進行供電。該電源供應轉換系統係包含至少一主電源裝置、至少一輔助電源裝置、一主開關、一輔助開關以及一控制單元。該主開關係連接於該外部電源與該主電源裝置之間。該輔助開關係連接於該輔助電源裝置與該負載之間。其中，當該控制單元偵測到該外部電源正常供電時，該控制單元係導通該主開關，使得該主電源裝置係接收該外部電源，並且轉換該外部電源對該負載供電；當該控制單元偵測到該外部電源異常供電時，該控制單元係截止該主開關以關斷該外部電源對該負載供電，並且切換該輔助電源裝置對該負載供電；當該控制單元偵測該外部電源恢復正常供電時，該控制單元係導通該主開關以復歸該外部電源，並且維持該輔助電源裝置共同對該負載供電；其中，該控制單元係控制該主電源裝置的輸出電壓大於該輔助電源裝置的輸出電壓；當該控制單元偵測該主電源裝置完全對該負載供電時，該控制單元係關斷該輔助電源裝置對該負載供電。It is an object of the present invention to provide a power supply conversion system that overcomes the problems of the prior art. Therefore, the power supply conversion system of the present invention receives an external power source and supplies power to a load. The power supply conversion system includes at least one main power supply device, at least one auxiliary power supply device, a main switch, an auxiliary switch, and a control unit. The main open relationship is connected between the external power source and the main power supply unit. The auxiliary open relationship is connected between the auxiliary power supply device and the load. Wherein, when the control unit detects that the external power source is normally powered, the control unit turns on the main switch, so that the main power supply device receives the external power source, and converts the external power source to supply power to the load; when the control unit When detecting that the external power source is abnormally powered, the control unit turns off the main switch to turn off the external power supply to supply power to the load, and switches the auxiliary power supply device to supply power to the load; when the control unit detects the external power recovery During normal power supply, the control unit turns on the main switch to reset the external power source, and maintains the auxiliary power supply device to supply power to the load; wherein the control unit controls the output voltage of the main power supply device to be greater than that of the auxiliary power supply device. Output voltage; when the control unit detects that the main power supply device completely supplies power to the load, the control unit turns off the auxiliary power supply device to supply power to the load.
本發明之另一目的在於提供一種電源供應轉換系統之控制方法，以克服習知技術的問題。因此本發明之該電源供應轉換系統係接收一外部電源，並且對一負載供電，其中，該電源供應轉換系統係包含至少一主電源裝置、至少一輔助電源裝置以及一控制單元。該控制方法係包含下列步驟：首先，當該控制單元偵測到該外部電源正常供電時，該主電源裝置係接收該外部電源，並且轉換該外部電源對該負載供電；然後，當該控制單元偵測到該外部電源異常供電時，該控制單元係關斷該外部電源對該負載供電，並且切換該輔助電源裝置對該負載供電；然後，當該控制單元偵測該外部電源恢復正常供電時，該控制單元係復歸該外部電源，並且維持該輔助電源裝置共同對該負載供電；其中，該控制單元係控制該主電源裝置的輸出電壓大於該輔助電源裝置的輸出電壓；最後，當該控制單元偵測該主電源裝置完全對該負載供電時，該控制單元係關斷該輔助電源裝置對該負載供電。Another object of the present invention is to provide a method of controlling a power supply conversion system to overcome the problems of the prior art. Therefore, the power supply conversion system of the present invention receives an external power supply and supplies power to a load, wherein the power supply conversion system includes at least one main power supply device, at least one auxiliary power supply device, and a control unit. The control method includes the following steps: First, when the control unit detects that the external power source is normally powered, the main power supply device receives the external power source, and converts the external power source to supply power to the load; and then, when the control unit When detecting that the external power source is abnormally powered, the control unit turns off the external power source to supply power to the load, and switches the auxiliary power source device to supply power to the load; and then, when the control unit detects that the external power source returns to normal power supply The control unit resets the external power source and maintains the auxiliary power supply unit to supply power to the load; wherein the control unit controls the output voltage of the main power supply device to be greater than the output voltage of the auxiliary power supply device; finally, when the control When the unit detects that the main power supply device completely supplies power to the load, the control unit turns off the auxiliary power supply device to supply power to the load.
為了能更進一步瞭解本發明為達成預定目的所採取之技術、手段及功效，請參閱以下有關本發明之詳細說明與附圖，相信本發明之目的、特徵與特點，當可由此得一深入且具體之瞭解，然而所附圖式僅提供參考與說明用，並非用來對本發明加以限制者。In order to further understand the technology, the means and the effect of the present invention in order to achieve the intended purpose, refer to the following detailed description of the invention and the accompanying drawings. The detailed description is to be understood as illustrative and not restrictive.
﹝本發明﹞﹝this invention﹞
Vin‧‧‧外部電源Vin‧‧‧External power supply
Ld‧‧‧負載Ld‧‧‧ load
10‧‧‧電源供應轉換系統10‧‧‧Power supply conversion system
102‧‧‧主電源裝置102‧‧‧Main power supply unit
104‧‧‧輔助電源裝置104‧‧‧Auxiliary power supply unit
106‧‧‧主開關106‧‧‧Main switch
108‧‧‧輔助開關108‧‧‧Auxiliary switch
110‧‧‧控制單元110‧‧‧Control unit
1102‧‧‧負載偵測器1102‧‧‧Load detector
1104‧‧‧負載訊號放大器1104‧‧‧Load signal amplifier
1106‧‧‧通訊訊號產生器1106‧‧‧Communication signal generator
1108‧‧‧參考電壓訊號產生器1108‧‧‧Reference voltage signal generator
1110‧‧‧操作電壓訊號產生器1110‧‧‧Operating voltage signal generator
1022‧‧‧輸入濾波整流電路1022‧‧‧Input filter rectifier circuit
1024‧‧‧直流/直流轉換電路1024‧‧‧DC/DC converter circuit
1026‧‧‧輸出濾波整流電路1026‧‧‧Output filter rectifier circuit
1042‧‧‧充電電路1042‧‧‧Charging circuit
1044‧‧‧充電電池1044‧‧‧Rechargeable battery
1046‧‧‧放電電路1046‧‧‧Discharge circuit
Smc‧‧‧主開關控制訊號Smc‧‧‧ main switch control signal
Sac‧‧‧輔助開關控制訊號Sac‧‧‧Auxiliary switch control signal
Pd‧‧‧電源偵測訊號Pd‧‧‧ power detection signal
Vom‧‧‧主電源裝置輸出電壓Vom‧‧‧ main power supply unit output voltage
Voa‧‧‧輔助電源裝置輸出電壓Voa‧‧‧Auxiliary power supply unit output voltage
Iom‧‧‧主電源裝置輸出電流Iom‧‧‧ main power supply unit output current
Ioa‧‧‧輔助電源裝置輸出電流Ioa‧‧‧Auxiliary power supply unit output current
Sod‧‧‧負載訊號Sod‧‧‧ load signal
Soda‧‧‧負載放大訊號Soda‧‧‧load amplification signal
Scm‧‧‧通訊訊號Scm‧‧‧ communication signal
Srv‧‧‧參考電壓訊號Srv‧‧‧ reference voltage signal
Sdv‧‧‧操作電壓訊號Sdv‧‧‧Operating voltage signal
10’‧‧‧電源供應轉換系統10’‧‧‧Power Supply Conversion System
102’‧‧‧第一主電源裝置102'‧‧‧First main power supply unit
104’‧‧‧第一輔助電源裝置104'‧‧‧First Auxiliary Power Supply Unit
106’‧‧‧主開關106’‧‧‧Main switch
108’‧‧‧輔助開關108’‧‧‧Auxiliary switch
110’‧‧‧第一控制單元110’‧‧‧First Control Unit
102”‧‧‧第二主電源裝置102”‧‧‧Second main power supply unit
104”‧‧‧第二輔助電源裝置104”‧‧‧Second auxiliary power supply unit
110”‧‧‧第二控制單元110”‧‧‧Second Control Unit
Smc’‧‧‧主開關控制訊號Smc’‧‧‧ main switch control signal
Sac’‧‧‧輔助開關控制訊號Sac’‧‧‧Auxiliary switch control signal
Vom1‧‧‧第一主電源裝置輸出電壓Vom1‧‧‧First main power supply unit output voltage
Voa1‧‧‧第一輔助電源裝置輸出電壓Voa1‧‧‧First auxiliary power supply unit output voltage
Vom2‧‧‧第二主電源裝置輸出電壓Vom2‧‧‧second main power supply unit output voltage
T1~T10‧‧‧時間點T1~T10‧‧‧ time point
V1‧‧‧第一電壓值V1‧‧‧ first voltage value
V2‧‧‧第二電壓值V2‧‧‧ second voltage value
V3‧‧‧第三電壓值V3‧‧‧ third voltage value
Voa2‧‧‧第二輔助電源裝置輸出電壓Voa2‧‧‧second auxiliary power supply unit output voltage
S10~S40‧‧‧步驟S10~S40‧‧‧Steps
第一圖係為本發明電源供應轉換系統第一實施例之示意方塊圖；The first figure is a schematic block diagram of a first embodiment of a power supply conversion system of the present invention;
第二圖係為本發明電源供應轉換系統第二實施例之示意方塊圖；The second figure is a schematic block diagram of a second embodiment of the power supply conversion system of the present invention;
第三圖係為本發明電源供應轉換系統控制之時序圖；The third figure is a timing diagram of the control of the power supply conversion system of the present invention;
第四圖係為本發明電源供應轉換系統第三實施例之示意方塊圖；The fourth figure is a schematic block diagram of a third embodiment of the power supply conversion system of the present invention;
第五圖係為本發明電源供應轉換系統第四實施例之示意方塊圖；及Figure 5 is a schematic block diagram of a fourth embodiment of the power supply conversion system of the present invention; and
第六圖係為本發明電源供應轉換系統控制方法之流程圖。The sixth figure is a flow chart of the control method of the power supply conversion system of the present invention.
茲有關本發明之技術內容及詳細說明，配合圖式說明如下：The technical content and detailed description of the present invention are as follows:
請參見第一圖係為本發明電源供應轉換系統第一實施例之示意方塊圖。該電源供應轉換系統10係接收一外部電源Vin，並且對一負載Ld進行供電。該電源供應轉換系統10係包含至少一主電源裝置102、至少一輔助電源裝置104、一主開關106、一輔助開關108以及至少一控制單元110。該主開關106係連接於該外部電源Vin與該至少一主電源裝置102之間。該輔助開關108係連接於該至少一輔助電源裝置104與該負載Ld之間。其中，該主開關106或該輔助開關108係為斷路器，但不以此為限，該主開關106或該輔助開關108亦可為功率開關或其他類似變化之實施例，皆應包含於本發明之範疇中。該控制單元110係連接該主電源裝置102與該輔助電源裝置104，該控制單元110係接收一電源偵測訊號Pd來偵測該外部電源Vin供電是否為正常或異常。此外，該外部電源Vin係為一交流電源(AC power source)或一直流電源(DC power source)，但不以此為限。惟，為方便說明，在本發明中，係以該外部電源Vin為該交流電源為例加以說明。1 is a schematic block diagram of a first embodiment of a power supply conversion system of the present invention. The power supply conversion system 10 receives an external power source Vin and supplies power to a load Ld. The power supply conversion system 10 includes at least one main power supply device 102, at least one auxiliary power supply device 104, a main switch 106, an auxiliary switch 108, and at least one control unit 110. The main switch 106 is connected between the external power source Vin and the at least one main power supply device 102. The auxiliary switch 108 is connected between the at least one auxiliary power supply device 104 and the load Ld. The main switch 106 or the auxiliary switch 108 is a circuit breaker, but not limited thereto, the main switch 106 or the auxiliary switch 108 may also be a power switch or other similar embodiment, and should be included in the present invention. In the scope of the invention. The control unit 110 is connected to the main power supply device 102 and the auxiliary power supply device 104. The control unit 110 receives a power detection signal Pd to detect whether the external power supply Vin is powered or abnormal. In addition, the external power source Vin is an AC power source or a DC power source, but is not limited thereto. For convenience of explanation, in the present invention, the external power source Vin is taken as an example of the AC power source.
當該控制單元110偵測到該外部電源Vin正常供電時，該控制單元110係輸出一主開關控制訊號Smc導通該主開關106，其中，該主開關控制訊號Smc係可為高準位訊號以導通該主開關106，但不以此為限，因此，使得該主電源裝置102係接收該外部電源Vin，並且轉換該外部電源Vin對該負載Ld供電。此時，該控制單元110係也輸出一輔助開關控制訊號Sac以截止該輔助開關108，其中，該輔助開關控制訊號Sac係可為低準位訊號以截止該輔助開關108，但不以此為限。換言之，當該控制單元110偵測到該外部電源Vin正常供電時，該控制單元110係輸出該主開關控制訊號Smc，並且透過該主電源裝置102轉換該外部電源Vin為該負載Ld所需的電壓準位。When the control unit 110 detects that the external power source Vin is normally powered, the control unit 110 outputs a main switch control signal Smc to turn on the main switch 106, wherein the main switch control signal Smc can be a high level signal. The main switch 106 is turned on, but not limited thereto, so that the main power supply device 102 receives the external power supply Vin, and converts the external power supply Vin to supply power to the load Ld. At this time, the control unit 110 also outputs an auxiliary switch control signal Sac to turn off the auxiliary switch 108, wherein the auxiliary switch control signal Sac can be a low level signal to turn off the auxiliary switch 108, but not limit. In other words, when the control unit 110 detects that the external power source Vin is normally powered, the control unit 110 outputs the main switch control signal Smc, and converts the external power source Vin to the load Ld through the main power supply device 102. Voltage level.
當該控制單元110偵測到該外部電源Vin異常供電時，該控制單元110係輸出該主開關控制訊號Smc截止該主開關106，其中，該主開關控制訊號Smc係可為低準位訊號以截止該主開關106，但不以此為限，以關斷該外部電源Vin對該負載Ld供電，並且該控制單元110係也輸出該輔助開關控制訊號Sac以導通該輔助開關108，其中該輔助開關控制訊號Sac係可為高準位訊號以導通該輔助開關108，但不以此為限，以切換該輔助電源裝置104對該負載Ld供電。其中，上述該外部電源Vin異常供電意指該外部電源Vin因故障、檢修或其他無法提供正常供電之操作狀況。When the control unit 110 detects that the external power source Vin is abnormally powered, the control unit 110 outputs the main switch control signal Smc to turn off the main switch 106, wherein the main switch control signal Smc can be a low level signal. The main switch 106 is turned off, but not limited thereto, to turn off the external power source Vin to supply power to the load Ld, and the control unit 110 also outputs the auxiliary switch control signal Sac to turn on the auxiliary switch 108, wherein the auxiliary switch 108 The switch control signal Sac can be a high level signal to turn on the auxiliary switch 108, but not limited thereto, to switch the auxiliary power supply device 104 to supply power to the load Ld. The abnormal power supply of the external power source Vin means that the external power source Vin is in an operating condition due to failure, maintenance, or other failure to provide normal power supply.
當該控制單元110偵測該外部電源V ac恢復正常供電時，該控制單元110係再次輸出高準位之該主開關控制訊號Smc以導通該主開關106，進而復歸該外部電源Vin，並且維持該輔助電源裝置104共同對該負載Ld供電。此時，該主開關106與該輔助開關108係同時為導通狀態。在此操作狀態下，該控制單元110係控制該主電源裝置102的輸出電壓Vom大於該輔助電源裝置104的輸出電壓Voa，使得該主電源裝置102與該輔助電源裝置104共同對該負載Ld供電的狀況下，該主電源裝置102對該負載Ld提供輸出能量的比例逐漸上升，而該輔助電源裝置104對該負載Ld提供輸出能量的比例逐漸下降，亦即，該主電源裝置102的輸出電流Iom逐漸增加，而該輔助電源裝置104的輸出電流Ioa逐漸減少。最後，當該控制單元110偵測該主電源裝置102完全對該負載Ld供電時，該控制單元110係再次輸出低準位之該輔助開關控制訊號Sac以截止該輔助開關108，進而關斷該輔助電源裝置104對該負載Ld供電。When the control unit 110 detects that the external power source V ac returns to normal power supply, the control unit 110 outputs the high level of the main switch control signal Smc again to turn on the main switch 106, thereby resetting the external power source Vin, and maintaining The auxiliary power supply unit 104 collectively supplies power to the load Ld. At this time, the main switch 106 and the auxiliary switch 108 are simultaneously in an on state. In this operating state, the control unit 110 controls the output voltage Vom of the main power supply device 102 to be greater than the output voltage Voa of the auxiliary power supply device 104, so that the main power supply device 102 and the auxiliary power supply device 104 jointly supply the load Ld. The ratio of the main power supply device 102 providing the output energy to the load Ld is gradually increased, and the ratio of the auxiliary power supply device 104 supplying the output energy to the load Ld is gradually decreased, that is, the output current of the main power supply device 102. The Iom gradually increases, and the output current Ioa of the auxiliary power supply device 104 gradually decreases. Finally, when the control unit 110 detects that the main power supply device 102 completely supplies power to the load Ld, the control unit 110 outputs the auxiliary switch control signal Sac of the low level again to turn off the auxiliary switch 108, thereby turning off the The auxiliary power supply unit 104 supplies power to the load Ld.
請參見第二圖係為本發明電源供應轉換系統第二實施例之示意方塊圖。該第二實施例與上述第一實施例最大的差異在於該電源供應轉換系統10’係具有多組主電源裝置、輔助電源裝置以及控制單元。為了方便說明，在本實施例中係以兩組主電源裝置、輔助電源裝置以及控制單元為例，亦即，該電源供應轉換系統10’係包含一第一主電源裝置102’、一第一輔助電源裝置104’、一第一控制單元110’、一第二主電源裝置102”、一第二輔助電源裝置104”、一第二控制單元110”、一主開關106’以及一輔助開關108’。值得一提，對於第二實施例之多組架構，每一控制單元係與一主電源裝置以及一輔助電源裝置形成一組架構，亦即，該第一控制單元110’係搭配該第一主電源裝置102’與該第一輔助電源裝置104’操作；而該第二控制單元110”係搭配該第二主電源裝置102”與該第二輔助電源裝置104”操作。至於該主開關106’與該輔助開關108’係可由該第一控制單元110’所產生一主開關控制訊號Smc’與一輔助開關控制訊號Sac’控制，或者，該主開關控制訊號Smc’與該輔助開關控制訊號Sac’可由該第二控制單元110”所產生以控制該主開關106’與該輔助開關108’。透過該電源供應轉換系統10’的多組架構操作，可對該負載Ld提供更多輸出能量以提高供電穩定度(stability)與可靠度(reliability)。Please refer to the second figure for a schematic block diagram of a second embodiment of the power supply conversion system of the present invention. The greatest difference between this second embodiment and the first embodiment described above is that the power supply conversion system 10' has a plurality of sets of main power supply units, auxiliary power supply units, and control units. For convenience of description, in the present embodiment, two sets of main power supply devices, an auxiliary power supply device, and a control unit are taken as an example, that is, the power supply conversion system 10' includes a first main power supply device 102', a first The auxiliary power supply device 104', a first control unit 110', a second main power supply device 102", a second auxiliary power supply device 104", a second control unit 110", a main switch 106' and an auxiliary switch 108 It is worth mentioning that for the multi-group architecture of the second embodiment, each control unit forms a set of architectures with a main power supply device and an auxiliary power supply device, that is, the first control unit 110' is coupled with the first A primary power supply device 102' operates with the first auxiliary power supply device 104'; and the second control unit 110" operates with the second primary power supply device 102" and the second auxiliary power supply device 104". The main switch 106' and the auxiliary switch 108' can be controlled by a main switch control signal Smc' generated by the first control unit 110' and an auxiliary switch control signal Sac', or the main switch control signal Smc' and The auxiliary switch control signal Sac' can be generated by the second control unit 110" to control the main switch 106' and the auxiliary switch 108'. The load Ld can be transmitted through the plurality of sets of architecture operations of the power supply conversion system 10'. Provide more output energy to improve power supply stability and reliability.
至於該多組架構的該電源供應轉換系統10’操作係與上述第一實施例相似，為方便說明，係以該第一控制單元110’為主要控制單元為例加以說明。惟，該第二控制單元110”亦可提供相同之操作，因此，不以該第一控制單元110’為主要控制單元為限制。當該偵測到該外部電源Vin正常供電時，係輸出高準位之該主開關控制訊號Smc’以導通該主開關106’，因此，該外部電源Vin係同時透過該第一主電源裝置102’與該第二主電源裝置102”轉換以對該負載Ld供電。換言之，在此操作狀態下，該第一主電源裝置102’與該第二主電源裝置102”係為並聯連接對該負載Ld供電。The operation of the power supply conversion system 10' of the multi-group architecture is similar to that of the first embodiment described above. For convenience of explanation, the first control unit 110' is taken as a main control unit as an example. However, the second control unit 110 ′′ can also provide the same operation, and therefore, the first control unit 110 ′ is not limited to the main control unit. When the external power supply Vin is detected to be powered normally, the output is high. The main switch control signal Smc' is turned on to turn on the main switch 106'. Therefore, the external power supply Vin is simultaneously converted by the first main power supply device 102' and the second main power supply device 102" to the load Ld. powered by. In other words, in this operating state, the first main power supply unit 102' and the second main power supply unit 102" are connected in parallel to supply power to the load Ld.
當該第一控制單元110’偵測到該外部電源Vin異常供電時，該第一控制單元110’係輸出該主開關控制訊號Smc’截止該主開關106’，以關斷該外部電源Vin對該負載Ld供電，並且該第一控制單元110’係也輸出高準位之該輔助開關控制訊號Sac’以導通該輔助開關108’，因此，該第一輔助電源裝置104’與該第二輔助電源裝置104”係同時對該負載Ld供電。換言之，在此操作狀態下，該第一輔助電源裝置104’與該第二輔助電源裝置104”係為並聯連接對該負載Ld供電。When the first control unit 110' detects that the external power source Vin is abnormally powered, the first control unit 110' outputs the main switch control signal Smc' to turn off the main switch 106' to turn off the external power source Vin pair. The load Ld is powered, and the first control unit 110' also outputs the auxiliary switch control signal Sac' of the high level to turn on the auxiliary switch 108'. Therefore, the first auxiliary power supply device 104' and the second auxiliary device The power supply device 104" simultaneously supplies power to the load Ld. In other words, in this operating state, the first auxiliary power supply device 104' and the second auxiliary power supply device 104" are connected in parallel to supply power to the load Ld.
當該第一控制單元110’偵測該外部電源Vin恢復正常供電時，該第一控制單元110’係再次輸出高準位之該主開關控制訊號Smc’以導通該主開關106’，進而復歸該外部電源Vin，並且維持該第一輔助電源裝置104’與該第二輔助電源裝置104”共同對該負載Ld供電。此時，該主開關106’與該輔助開關108’係同時為導通狀態。在此操作狀態下，該第一控制單元110’係控制該第一主電源裝置102’的輸出電壓Vom1大於該第一輔助電源裝置104’的輸出電壓Voa’，以及控制該第二主電源裝置102”的輸出電壓Vom2大於該第二輔助電源裝置104”的輸出電壓Voa”，使得該第一主電源裝置102’與該第一輔助電源裝置104’以及該第二主電源裝置102”與該第二輔助電源裝置104”共同對該負載Ld供電的狀況下，該第一主電源裝置102’與該第二主電源裝置102”對該負載Ld提供輸出能量的比例逐漸上升，而該第一輔助電源裝置104’與該第二輔助電源裝置104”對該負載Ld提供輸出能量的比例逐漸下降，亦即，該第一主電源裝置102’的輸出電流Iom1與該第二主電源裝置102”的輸出電流Iom2逐漸增加，而該第一輔助電源裝置104’的輸出電流Ioa1與該第二輔助電源裝置104”的輸出電流Ioa2逐漸減少。最後，當該第一控制單元110’偵測該第一主電源裝置102’與該第二主電源裝置102”完全對該負載Ld供電時，該第一控制單元110’係再次輸出低準位之該輔助開關控制訊號Sac’以截止該輔助開關108’，進而關斷該第一輔助電源裝置104’與該第二輔助電源裝置104”對該負載Ld供電。When the first control unit 110' detects that the external power supply Vin returns to normal power supply, the first control unit 110' outputs the high-level main switch control signal Smc' again to turn on the main switch 106', thereby returning to the first control unit 110'. The external power source Vin, and maintaining the first auxiliary power supply device 104' and the second auxiliary power supply device 104" to supply power to the load Ld. At this time, the main switch 106' and the auxiliary switch 108' are simultaneously turned on. In this operating state, the first control unit 110' controls the output voltage Vom1 of the first main power supply device 102' to be greater than the output voltage Voa' of the first auxiliary power supply device 104', and controls the second main power supply. The output voltage Vom2 of the device 102" is greater than the output voltage Voa" of the second auxiliary power supply device 104" such that the first main power supply device 102' and the first auxiliary power supply device 104' and the second main power supply device 102" When the second auxiliary power supply device 104" collectively supplies power to the load Ld, the first main power supply device 102' and the second main power supply device 102" provide the ratio of the output energy to the load Ld. Gradually rising, and the ratio of the first auxiliary power supply device 104' and the second auxiliary power supply device 104" providing the output energy to the load Ld is gradually decreased, that is, the output current Iom1 of the first main power supply device 102' is The output current Iom2 of the second main power supply device 102" gradually increases, and the output current Ioa1 of the first auxiliary power supply device 104' and the output current Ioa2 of the second auxiliary power supply device 104" gradually decrease. Finally, when the first control unit 110' detects that the first main power supply device 102' and the second main power supply device 102" completely supply power to the load Ld, the first control unit 110' outputs the low level again. The auxiliary switch control signal Sac' turns off the auxiliary switch 108', thereby turning off the first auxiliary power supply device 104' and the second auxiliary power supply device 104" to supply power to the load Ld.
請參見第三圖係為本發明電源供應轉換系統控制之時序圖。對於該電源供應轉換系統時序控制係以一組該主電源裝置102、該輔助電源裝置104以及該控制單元110為例說明。如圖所示，由上而下的波形分別表示該外部電源電壓狀態Vin、該外部電源電壓狀態Iin、該負載電流狀態Id、該輔助電源裝置電流狀態Ioa、該主電源裝置電流狀態Iom、該負載電壓狀態Vd、該輔助電源裝置電壓狀態Voa、該主電源裝置電壓狀態Vom。值得一提，圖上所表示的波形圖僅為該些裝置的電氣狀態，用以示意該些裝置的操作狀態，非為實際的電氣參數值大小。Please refer to the third figure for the timing diagram of the power supply conversion system control of the present invention. The power supply switching system timing control is described by taking a set of the main power supply device 102, the auxiliary power supply device 104, and the control unit 110 as an example. As shown, the top-down waveform represents the external power supply voltage state Vin, the external power supply voltage state Iin, the load current state Id, the auxiliary power supply device current state Ioa, the main power supply device current state Iom, The load voltage state Vd, the auxiliary power supply device voltage state Voa, and the main power supply device voltage state Vom. It is worth mentioning that the waveform diagrams shown on the figures are only the electrical states of the devices, which are used to indicate the operational status of the devices, not the actual electrical parameter values.
配合參見第一圖，在第一時間點T1之前，當該控制單元110偵測到該外部電源Vin正常供電時，該控制單元110係導通該主開關106，使得該主電源裝置102係接收該外部電源Vin，並且轉換該外部電源Vin對該負載Ld供電。換言之，當該外部電源Vin正常供電時，該電源供應轉換系統10係由該主電源裝置102提供主要供電責任，而該輔助電源裝置104係為待機備援狀態。在第一時間點T1時，該控制單元110偵測到該外部電源Vin異常供電，該控制單元110係截止該主開關106，以關斷該外部電源Vin對該負載Ld供電，並且切換該輔助電源裝置104對該負載Ld供電。換言之，當該外部電源Vin異常供電時，該輔助電源裝置104則扮演主要供電責任，而該主電源裝置102則無法再提供系統負載，此時，可對該外部電源Vin進行檢修或更新。Referring to the first figure, before the first time point T1, when the control unit 110 detects that the external power source Vin is normally powered, the control unit 110 turns on the main switch 106, so that the main power supply device 102 receives the The external power source Vin, and converts the external power source Vin to supply power to the load Ld. In other words, when the external power source Vin is normally powered, the power supply switching system 10 is provided with the primary power supply responsibility by the main power supply device 102, and the auxiliary power supply device 104 is in the standby standby state. At the first time point T1, the control unit 110 detects that the external power source Vin is abnormally powered, and the control unit 110 turns off the main switch 106 to turn off the external power source Vin to supply power to the load Ld, and switches the auxiliary. The power supply unit 104 supplies power to the load Ld. In other words, when the external power source Vin is abnormally powered, the auxiliary power supply device 104 acts as the main power supply, and the main power supply device 102 can no longer provide the system load. At this time, the external power supply Vin can be repaired or updated.
假設該第二時間點T2時，該控制單元110偵測該外部電源Vin恢復正常供電，該控制單元110係導通該主開關106，使得該主電源裝置102接收到該外部電源Vin。在第三時間點T3時，該主電源裝置102完成電壓建立並提供輸出電壓以對該負載Ld供電。值得一提，此時，該主電源裝置102與該輔助電源裝置104係共同對該負載Ld供電。Assuming that the second time point T2, the control unit 110 detects that the external power source Vin resumes normal power supply, and the control unit 110 turns on the main switch 106, so that the main power source device 102 receives the external power source Vin. At the third time point T3, the main power supply device 102 completes voltage establishment and provides an output voltage to supply power to the load Ld. It is worth mentioning that at this time, the main power supply device 102 and the auxiliary power supply device 104 jointly supply power to the load Ld.
在第四時間點T4時，該控制單元110係控制該主電源裝置102的輸出電壓Vom大於該輔助電源裝置104的輸出電壓Voa，換言之，在第四時間點T4時，該主電源裝置102的輸出電壓Vom大小由一第一電壓值V1拉高為一第三電壓值V3，而該輔助電源裝置104的輸出電壓Voa大小則維持為一第二電壓值V2，其中，V3>V2。由於該主電源裝置102的輸出電壓Vom大於該輔助電源裝置104的輸出電壓Voa，使得該主電源裝置102與該輔助電源裝置104共同對該負載Ld供電的狀況下，該主電源裝置102對該負載Ld提供輸出能量的比例逐漸上升，而該輔助電源裝置104對該負載Ld提供輸出能量的比例逐漸下降，亦即，假設維持對該負載Ld提供的總系統負載為定值時，該主電源裝置102的輸出電流Iom逐漸增加，使得提供該負載Ld的系統負載逐漸增加；而該輔助電源裝置104的輸出電流Ioa逐漸減少，使得提供該負載Ld的系統負載逐漸減少。如圖上第四時間點T4至第十時間點T10即為該主電源裝置102與該輔助電源裝置104共同對該負載Ld供電的狀況下，該主電源裝置102的輸出電流Iom逐漸增加，而該輔助電源裝置104的輸出電流Ioa逐漸減少的示意圖。At the fourth time point T4, the control unit 110 controls the output voltage Vom of the main power supply device 102 to be greater than the output voltage Voa of the auxiliary power supply device 104, in other words, at the fourth time point T4, the main power supply device 102 The output voltage Vom is pulled up by a first voltage value V1 to a third voltage value V3, and the output voltage Voa of the auxiliary power supply device 104 is maintained at a second voltage value V2, where V3>V2. Since the output voltage Vom of the main power supply device 102 is greater than the output voltage Voa of the auxiliary power supply device 104, so that the main power supply device 102 and the auxiliary power supply device 104 jointly supply power to the load Ld, the main power supply device 102 The ratio of the load Ld providing the output energy is gradually increased, and the ratio of the auxiliary power supply device 104 supplying the output energy to the load Ld is gradually decreased, that is, the main power supply is assumed to be maintained when the total system load provided for the load Ld is maintained. The output current Iom of the device 102 is gradually increased, so that the system load for providing the load Ld is gradually increased; and the output current Ioa of the auxiliary power supply device 104 is gradually decreased, so that the system load for providing the load Ld is gradually reduced. As shown in the figure from the fourth time point T4 to the tenth time point T10, the main power supply device 102 and the auxiliary power supply device 104 jointly supply power to the load Ld, the output current Iom of the main power supply device 102 gradually increases. A schematic diagram in which the output current Ioa of the auxiliary power supply device 104 is gradually reduced.
最後，在第四時間點T10時，當該控制單元110偵測該主電源裝置102完全對該負載Ld供電時，該控制單元110係關斷該輔助電源裝置104對該負載Ld供電。Finally, at the fourth time point T10, when the control unit 110 detects that the main power supply device 102 completely supplies power to the load Ld, the control unit 110 turns off the auxiliary power supply device 104 to supply power to the load Ld.
值得一提，本發明該電源供應轉換系統的控制策略具有下列的特點：It is worth mentioning that the control strategy of the power supply conversion system of the present invention has the following characteristics:
一、透過延長該主電源裝置102與該輔助電源裝置104共同對該負載Ld供電的時間，例如上述實施例中的第四時間點T4至第十時間點T10，即可稱為能量轉換區間(energy transformation area)，也就是說，在能量轉換區間中，該主電源裝置102的輸出電流能力逐漸提升，使得該主電源裝置102提供該負載Ld的系統負載比例(相較於該輔助電源裝置104)逐漸增加，以實現該主電源裝置102與該輔助電源裝置104之間供電的軟性轉換(soft transformation)或稱平滑轉換(smooth transformation)，如此，能以克服當該外部電源Vin恢復正常供電時，由於直接切換該主電源裝置102對該負載Ld供電，而瞬間切斷該輔助電源裝置104所產生的暫態湧浪電流(inrush current)，並且造成輸入電源產生電壓驟降(voltage dip)，導致系統當機(shut down)而必須重新開機所引起的彈跳(re-bounce)異常，再者，甚至造成對系統使用壽命的損害。1. By extending the time during which the main power supply device 102 and the auxiliary power supply device 104 supply power to the load Ld, for example, the fourth time point T4 to the tenth time point T10 in the above embodiment, it may be referred to as an energy conversion interval ( The energy conversion area), that is, in the energy conversion interval, the output current capability of the main power supply device 102 is gradually increased, so that the main power supply device 102 provides the system load ratio of the load Ld (compared to the auxiliary power supply device 104). Gradually increasing to achieve soft conversion or smooth transformation of power supply between the main power supply device 102 and the auxiliary power supply device 104, so as to overcome when the external power supply Vin returns to normal power supply Since the main power supply device 102 directly switches the power supply to the load Ld, the transient inrush current generated by the auxiliary power supply device 104 is instantaneously cut off, and a voltage dip is generated in the input power supply. The bounce (re-bounce) abnormality caused by the system being shut down and must be restarted, and even causing the system to last Damage.
二、透過線性時變(linear and time-varying control)的方式控制該主電源裝置102逐漸提升輸出電流能力，並且逐漸降低該輔助電源裝置104輸出電流能力，換言之，該主電源裝置102的輸出電流能力可透過固定的百分比遞增，例如從第四時間點T4為0%逐漸增加至第十時間點T10為100%，亦即，每個時間區間，該主電源裝置102係固定遞增14.29%的輸出電流能力，以完成該主電源裝置102與該輔助電源裝置104之間供電的平滑轉換。當然，上述時間區間並非限定第四時間點T4至第十時間點T10，可依實際需要延長該主電源裝置102與該輔助電源裝置104共同供電的能量轉換區間，以達到完全平滑(軟性)的供電轉換，如此，可提高對該負載Ld供電的強韌性(robustness)。2. Controlling the main power supply device 102 to gradually increase the output current capability by linear and time-varying control, and gradually reducing the output current capability of the auxiliary power supply device 104, in other words, the output current of the main power supply device 102. The capability can be increased by a fixed percentage, for example, gradually increasing from the fourth time point T4 to 0% to the tenth time point T10 being 100%, that is, the main power supply device 102 is fixedly incremented by 14.29% in each time interval. Current capability to complete a smooth transition of power between the main power supply unit 102 and the auxiliary power supply unit 104. Of course, the time interval is not limited to the fourth time point T4 to the tenth time point T10, and the energy conversion interval of the main power supply device 102 and the auxiliary power supply device 104 can be extended according to actual needs, so as to achieve complete smoothness (softness). The power conversion is such that the robustness of the power supply to the load Ld can be improved.
請參見第四圖係為本發明電源供應轉換系統第三實施例之示意方塊圖。值得一提，第四圖所記載之內容係為當該電源供應轉換系統10操作於該主電源裝置102與該輔助電源裝置104共同供電的能量轉換區間，亦即，該主開關106與該輔助開關108為導通狀態，因此不特別標示出來。在該實施例中，該控制單元110係包含一負載偵測器1102、一負載訊號放大器1104、一通訊訊號產生器1106、一參考電壓訊號產生器1108以及一操作電壓訊號產生器1110。該負載偵測器1102係連接該負載Ld用以偵測該負載Ld狀況，具體而言，該負載偵測器1102係可偵測該負載Ld所需的總系統負載大小，並且輸出一負載訊號Sod，再透過該負載訊號放大器1104將該負載訊號Sod放大，並且輸出一負載放大訊號Soda。該通訊訊號產生器1106係連接該輔助電源裝置104用以負責該主電源裝置102與該輔助電源裝置104兩者之間的通訊工作，具體而言，該通訊訊號產生器1106係負責當該主電源裝置102與該輔助電源裝置104共同對該負載Ld供電時，對於該負載Ld提供系統負載比例調整的通訊工作，以確保完全平滑(軟性)的供電轉換。其中，該通訊訊號產生器1106係偵測該輔助電源裝置104的供電狀況，並輸出一通訊訊號Scm。該參考電壓訊號產生器1108係連接該輔助電源裝置104，用以偵測該輔助電源裝置104，並且輸出一參考電壓訊號Srv，以控制該主電源裝置102輸出電壓大於該輔助電源裝置104輸出電壓。該操作電壓訊號產生器1110係連接該負載訊號放大器1104、該通訊訊號產生器1106以及該參考電壓訊號產生器1108，並且分別接收該負載放大訊號Soda、該通訊訊號Scm以及該參考電壓訊號Srv。該操作電壓訊號產生器1110係根據該負載訊號放大器1104取得該負載Ld的總系統負載大小，並根據該通訊訊號Scm取得該輔助電源裝置104的供電狀況，再根據該參考電壓訊號Srv取得該輔助電源裝置104的輸出電壓大小，因此，輸出一操作電壓訊號Sdv，以控制該主電源裝置102的輸出電壓，使得該主電源裝置102與該輔助電源裝置104共同對該負載Ld供電的狀況下，該主電源裝置102對該負載Ld提供輸出能量的比例逐漸上升，而該輔助電源裝置104對該負載Ld提供輸出能量的比例逐漸下降，以達到完全平滑(軟性)的供電轉換。Please refer to the fourth figure for a schematic block diagram of a third embodiment of the power supply conversion system of the present invention. It is worth mentioning that the content described in the fourth figure is the energy conversion interval when the power supply conversion system 10 operates in the main power supply device 102 and the auxiliary power supply device 104, that is, the main switch 106 and the auxiliary device. The switch 108 is in an on state and therefore is not specifically labeled. In this embodiment, the control unit 110 includes a load detector 1102, a load signal amplifier 1104, a communication signal generator 1106, a reference voltage signal generator 1108, and an operating voltage signal generator 1110. The load detector 1102 is connected to the load Ld for detecting the load Ld condition. Specifically, the load detector 1102 can detect the total system load required by the load Ld and output a load signal. Sod, the load signal Sod is amplified by the load signal amplifier 1104, and a load amplification signal Soda is output. The communication signal generator 1106 is connected to the auxiliary power supply unit 104 for communication between the main power supply unit 102 and the auxiliary power supply unit 104. Specifically, the communication signal generator 1106 is responsible for the main When the power supply device 102 and the auxiliary power supply device 104 collectively supply power to the load Ld, the communication operation for adjusting the system load ratio is provided for the load Ld to ensure a completely smooth (soft) power supply conversion. The communication signal generator 1106 detects the power supply status of the auxiliary power supply device 104 and outputs a communication signal Scm. The reference voltage signal generator 1108 is connected to the auxiliary power supply device 104 for detecting the auxiliary power supply device 104 and outputting a reference voltage signal Srv to control the output voltage of the main power supply device 102 to be greater than the output voltage of the auxiliary power supply device 104. . The operating voltage signal generator 1110 is connected to the load signal amplifier 1104, the communication signal generator 1106, and the reference voltage signal generator 1108, and receives the load amplification signal Soda, the communication signal Scm, and the reference voltage signal Srv, respectively. The operating voltage signal generator 1110 obtains the total system load of the load Ld according to the load signal amplifier 1104, and obtains the power supply status of the auxiliary power supply device 104 according to the communication signal Scm, and obtains the auxiliary according to the reference voltage signal Srv. The output voltage of the power supply device 104 is sized to output an operating voltage signal Sdv to control the output voltage of the main power supply device 102 such that the main power supply device 102 and the auxiliary power supply device 104 jointly supply power to the load Ld. The ratio of the main power supply device 102 supplying the output energy to the load Ld is gradually increased, and the ratio of the auxiliary power supply device 104 supplying the output energy to the load Ld is gradually decreased to achieve a completely smooth (soft) power supply conversion.
請參見第五圖係為本發明電源供應轉換系統第四實施例之示意方塊圖。如第五圖所示，該主電源裝置102係包含一輸入濾波整流電路1022、一直流/直流轉換電路1024以及一輸出濾波整流電路1026。該輔助電源裝置104係包含一充電電路1042、一充電電池1044以及一放電電路1046。當該主開關106導通時，該輸入濾波整流電路1022係接收該外部電源Vin，並且對該外部電源Vin進行濾波與整流。該直流/直流轉換電路1024則接收該濾波與整流後的直流電壓，並且對該直流電壓進行電壓準位的控制，再透過該輸出濾波整流電路1026進行濾波與整流後，提供該負載Ld所需的電壓準位進行供電。Please refer to the fifth figure for a schematic block diagram of a fourth embodiment of the power supply conversion system of the present invention. As shown in the fifth figure, the main power supply device 102 includes an input filter rectification circuit 1022, a DC/DC conversion circuit 1024, and an output filter rectification circuit 1026. The auxiliary power supply device 104 includes a charging circuit 1042, a rechargeable battery 1044, and a discharging circuit 1046. When the main switch 106 is turned on, the input filter rectifier circuit 1022 receives the external power source Vin and filters and rectifies the external power source Vin. The DC/DC conversion circuit 1024 receives the filtered and rectified DC voltage, and controls the voltage level of the DC voltage, and then filters and rectifies the output filter rectification circuit 1026 to provide the load Ld. The voltage level is used to supply power.
在本實施例中，該輔助電源裝置104係由充電電池與其充放電電路所組成。當該外部電源Vin正常供電時，該主電源裝置102係接收該外部電源Vin，並且轉換該外部電源Vin對該負載Ld供電。此外，該外部電源Vin係進一步提供該輔助電源裝置104，透過該充電電路1042對該充電電池1044進行充電，以實現待機電力備援的功能。一旦該外部電源Vin異常供電時，該輔助電源裝置104則扮演主要供電責任，透過該放電電路1046對該負載提供所需總系統負載，以確保該電源供應轉換系統10持續性地對該負載Ld供電。In the present embodiment, the auxiliary power supply unit 104 is composed of a rechargeable battery and its charge and discharge circuit. When the external power source Vin is normally powered, the main power source device 102 receives the external power source Vin, and converts the external power source Vin to supply power to the load Ld. Further, the external power supply Vin further supplies the auxiliary power supply device 104, and the rechargeable battery 1044 is charged through the charging circuit 1042 to realize the standby power backup function. Once the external power source Vin is abnormally powered, the auxiliary power supply unit 104 acts as the primary power source through which the total system load is required to be supplied to the load to ensure that the power supply conversion system 10 continues to load the load Ld. powered by.
請參見第六圖係為本發明電源供應轉換系統控制方法之流程圖。該電源供應轉換系統係接收一外部電源，並且對一負載供電，其中，該電源供應轉換系統係包含至少一主電源裝置、至少一輔助電源裝置、一主開關、一輔助開關以及一控制單元。該主開關係連接於該外部電源與該至少一主電源裝置之間。該輔助開關係連接於該至少一輔助電源裝置與該負載之間。該控制單元係連接該主電源裝置與該輔助電源裝置。該控制方法係包含下列步驟：首先，當該控制單元偵測到該外部電源正常供電時，該控制單元係導通該主開關，使得該主電源裝置係接收該外部電源，並且轉換該外部電源對該負載供電(S10)。然後，當該控制單元偵測到該外部電源異常供電時，該控制單元係截止該主開關，以關斷該外部電源對該負載供電，並且導通該輔助開關以切換該輔助電源裝置對該負載供電(S20)。其中，上述該外部電源異常供電意指該外部電源因故障、檢修或其他無法提供正常供電之操作狀況。Please refer to the sixth figure for the flow chart of the control method of the power supply conversion system of the present invention. The power supply conversion system receives an external power supply and supplies power to a load, wherein the power supply conversion system includes at least one main power supply device, at least one auxiliary power supply device, a main switch, an auxiliary switch, and a control unit. The main open relationship is connected between the external power source and the at least one main power supply device. The auxiliary open relationship is connected between the at least one auxiliary power supply device and the load. The control unit is connected to the main power supply unit and the auxiliary power supply unit. The control method includes the following steps: First, when the control unit detects that the external power source is normally powered, the control unit turns on the main switch, so that the main power supply device receives the external power source, and converts the external power source pair. The load is powered (S10). Then, when the control unit detects that the external power source is abnormally powered, the control unit turns off the main switch to turn off the external power source to supply power to the load, and turns on the auxiliary switch to switch the auxiliary power device to the load. Power supply (S20). The abnormal power supply of the external power source refers to an operation condition of the external power source due to a fault, an overhaul, or other failure to provide normal power supply.
然後，當該控制單元偵測該外部電源恢復正常供電時，該控制單元係導通該主開關以復歸該外部電源，並且維持該輔助電源裝置共同對該負載供電(S30)。此時，該主開關與該輔助開關係同時為導通狀態。在此操作狀態下，該控制單元係控制該主電源裝置的輸出電壓大於該輔助電源裝置的輸出電壓，使得該主電源裝置與該輔助電源裝置共同對該負載供電的狀況下，該主電源裝置對該負載提供輸出能量的比例逐漸上升，而該輔助電源裝置對該負載提供輸出能量的比例逐漸下降，亦即，該主電源裝置的輸出電流逐漸增加，而該輔助電源裝置的輸出電流逐漸減少。最後，當該控制單元偵測該主電源裝置完全對該負載供電時，該控制單元係截止該輔助開關以關斷該輔助電源裝置對該負載供電(S40)。Then, when the control unit detects that the external power source returns to normal power supply, the control unit turns on the main switch to reset the external power source, and maintains the auxiliary power source device to supply power to the load (S30). At this time, the main switch and the auxiliary opening relationship are simultaneously in an on state. In this operating state, the control unit controls the main power supply device to control the output voltage of the main power supply device to be greater than the output voltage of the auxiliary power supply device, so that the main power supply device and the auxiliary power supply device jointly supply power to the load, the main power supply device The ratio of the output energy to the load is gradually increased, and the ratio of the auxiliary power supply device providing the output energy to the load is gradually decreased, that is, the output current of the main power supply device is gradually increased, and the output current of the auxiliary power supply device is gradually decreased. . Finally, when the control unit detects that the main power supply device completely supplies power to the load, the control unit turns off the auxiliary switch to turn off the auxiliary power supply device to supply power to the load (S40).
綜上所述，本發明係具有以下之特徵與優點：In summary, the present invention has the following features and advantages:
1、透過該電源供應轉換系統10的多組架構操作，可對該負載Ld提供更多輸出能量以提高供電穩定度(stability)與可靠度(reliability)；1. Through the multiple sets of architecture operations of the power supply conversion system 10, more output energy can be provided to the load Ld to improve power supply stability and reliability;
2、透過延長該主電源裝置102與該輔助電源裝置104共同對該負載Ld供電的時間，在能量轉換區間中，該主電源裝置102的輸出電流能力逐漸提升，使得該主電源裝置102提供該負載Ld的系統負載比例逐漸增加，以實現該主電源裝置102與該輔助電源裝置104之間供電的軟性轉換(soft transformation)或稱平滑轉換(smooth transformation)，如此，能以克服當該外部電源Vin恢復正常供電時，由於直接切換該主電源裝置102對該負載Ld供電，而瞬間切斷該輔助電源裝置104所產生的暫態湧浪電流，並且造成輸入電源產生電壓驟降，導致系統當機而必須重新開機所引起的彈跳異常，再者，甚至造成對系統使用壽命的損害；2. By extending the time during which the main power supply device 102 and the auxiliary power supply device 104 supply power to the load Ld, the output current capability of the main power supply device 102 is gradually increased in the energy conversion interval, so that the main power supply device 102 provides the The system load ratio of the load Ld is gradually increased to implement a soft conversion or a smooth transformation of the power supply between the main power supply device 102 and the auxiliary power supply device 104, so that the external power supply can be overcome. When Vin resumes normal power supply, the main power supply device 102 directly switches the power supply to the load Ld, and instantaneously cuts off the transient surge current generated by the auxiliary power supply device 104, and causes a voltage dip in the input power supply, causing the system to The bouncing abnormality caused by the restart of the machine, and even the damage to the service life of the system;
3、透過線性時變的方式控制該主電源裝置102逐漸提升輸出電流能力，並且逐漸降低該輔助電源裝置104輸出電流能力，以完成該主電源裝置102與該輔助電源裝置104之間供電的平滑轉換，如此，能以達到完全平滑(軟性)的供電轉換，並且可提高對該負載Ld供電的強韌性(robustness)；及3. Controlling the main power supply device 102 to gradually increase the output current capability by linear time-varying, and gradually reducing the output current capability of the auxiliary power supply device 104 to complete the smoothing of the power supply between the main power supply device 102 and the auxiliary power supply device 104. Conversion, in this way, to achieve a completely smooth (soft) power conversion, and to improve the robustness of the power supply to the load Ld;
4、根據該控制單元110偵測該外部電源Vin為正常供電或異常供電，使得該主電源裝置102或該輔助電源裝置104轉換供電任務，以確保該電源供應轉換系統10持續性地對該負載Ld供電。4. The control unit 110 detects that the external power source Vin is a normal power supply or an abnormal power supply, so that the main power supply device 102 or the auxiliary power supply device 104 switches the power supply task to ensure that the power supply conversion system 10 continuously loads the load. Ld power supply.
惟，以上所述，僅為本發明較佳具體實施例之詳細說明與圖式，惟本發明之特徵並不侷限於此，並非用以限制本發明，本發明之所有範圍應以下述之申請專利範圍為準，凡合於本發明申請專利範圍之精神與其類似變化之實施例，皆應包含於本發明之範疇中，任何熟悉該項技藝者在本發明之領域內，可輕易思及之變化或修飾皆可涵蓋在以下本案之專利範圍。However, the above description is only for the detailed description and the drawings of the preferred embodiments of the present invention, and the present invention is not limited thereto, and is not intended to limit the present invention. The scope of the patent application is intended to be included in the scope of the present invention, and any one skilled in the art can readily appreciate it in the field of the present invention. Variations or modifications may be covered by the patents in this case below.
Vin‧‧‧外部電源電壓 Vin‧‧‧External power supply voltage
Iin‧‧‧外部電源電流 Iin‧‧‧ external power supply current
Ld‧‧‧負載 Ld‧‧‧ load
10‧‧‧電源供應轉換系統 10‧‧‧Power supply conversion system
102‧‧‧主電源裝置 102‧‧‧Main power supply unit
104‧‧‧輔助電源裝置 104‧‧‧Auxiliary power supply unit
106‧‧‧主開關 106‧‧‧Main switch
108‧‧‧輔助開關 108‧‧‧Auxiliary switch
110‧‧‧控制單元 110‧‧‧Control unit
Smc‧‧‧主開關控制訊號 Smc‧‧‧ main switch control signal
Sac‧‧‧輔助開關控制訊號 Sac‧‧‧Auxiliary switch control signal
Pd‧‧‧電源偵測訊號 Pd‧‧‧ power detection signal
Vom‧‧‧主電源裝置輸出電壓 Vom‧‧‧ main power supply unit output voltage
Voa‧‧‧輔助電源裝置輸出電壓 Voa‧‧‧Auxiliary power supply unit output voltage
Iom‧‧‧主電源裝置輸出電流 Iom‧‧‧ main power supply unit output current
Ioa‧‧‧輔助電源裝置輸出電流 Ioa‧‧‧Auxiliary power supply unit output current
Vd‧‧‧負載電壓 Vd‧‧‧ load voltage
Id‧‧‧負載電流 Id‧‧‧Load current
Claims (20)
至少一主電源裝置；
至少一輔助電源裝置；
一主開關，係連接於該外部電源與該主電源裝置之間；
一輔助開關，係連接於該輔助電源裝置與該負載之間；
一控制單元，係連接該主電源裝置與該輔助電源裝置；及
其中，當該控制單元偵測到該外部電源正常供電時，該控制單元係導通該主開關，使得該主電源裝置係接收該外部電源，並且轉換該外部電源對該負載供電；當該控制單元偵測到該外部電源異常供電時，該控制單元係截止該主開關以關斷該外部電源對該負載供電，並且切換該輔助電源裝置對該負載供電；當該控制單元偵測該外部電源恢復正常供電時，該控制單元係導通該主開關以復歸該外部電源，並且維持該輔助電源裝置共同對該負載供電；其中，該控制單元係控制該主電源裝置的輸出電壓大於該輔助電源裝置的輸出電壓；當該控制單元偵測該主電源裝置完全對該負載供電時，該控制單元係關斷該輔助電源裝置對該負載供電。A power supply conversion system receives an external power supply and supplies power to a load; the power supply conversion system includes:
At least one main power supply device;
At least one auxiliary power supply device;
a main switch is connected between the external power source and the main power supply device;
An auxiliary switch is connected between the auxiliary power supply device and the load;
a control unit is connected to the main power supply device and the auxiliary power supply device; and when the control unit detects that the external power supply is normally powered, the control unit turns on the main switch, so that the main power supply device receives the An external power source, and converting the external power source to supply power to the load; when the control unit detects that the external power source is abnormally powered, the control unit turns off the main switch to turn off the external power source to supply power to the load, and switches the auxiliary The power supply device supplies power to the load; when the control unit detects that the external power supply returns to normal power supply, the control unit turns on the main switch to reset the external power source, and maintains the auxiliary power supply device to supply power to the load; wherein The control unit controls the output voltage of the main power supply device to be greater than the output voltage of the auxiliary power supply device; when the control unit detects that the main power supply device completely supplies power to the load, the control unit turns off the auxiliary power supply device to the load powered by.
(a)當該控制單元偵測到該外部電源正常供電時，該主電源裝置係接收該外部電源，並且轉換該外部電源對該負載供電；
(b)當該控制單元偵測到該外部電源異常供電時，該控制單元係關斷該外部電源對該負載供電，並且切換該輔助電源裝置對該負載供電；
(c)當該控制單元偵測該外部電源恢復正常供電時，該控制單元係復歸該外部電源，並且維持該輔助電源裝置共同對該負載供電；其中，該控制單元係控制該主電源裝置的輸出電壓大於該輔助電源裝置的輸出電壓；及
(d)當該控制單元偵測該主電源裝置完全對該負載供電時，該控制單元係關斷該輔助電源裝置對該負載供電。A control method of a power supply conversion system, which receives an external power supply and supplies power to a load, wherein the power supply conversion system includes at least one main power supply device, at least one auxiliary power supply device, and a control unit The control method consists of the following steps:
(a) when the control unit detects that the external power source is normally powered, the main power supply device receives the external power source, and converts the external power source to supply power to the load;
(b) when the control unit detects that the external power source is abnormally powered, the control unit turns off the external power source to supply power to the load, and switches the auxiliary power source device to supply power to the load;
(c) when the control unit detects that the external power source returns to normal power supply, the control unit resets the external power source, and maintains the auxiliary power source device to jointly supply the load; wherein the control unit controls the main power device The output voltage is greater than the output voltage of the auxiliary power supply device; and
(d) When the control unit detects that the main power supply device is completely powering the load, the control unit turns off the auxiliary power supply device to supply power to the load.
一主開關，係連接於該外部電源與該主電源裝置之間；及
一輔助開關，係連接於該輔助電源裝置與該負載之間。The power supply conversion system control method according to claim 10, wherein the power supply conversion system further comprises:
A main switch is connected between the external power source and the main power supply device; and an auxiliary switch is connected between the auxiliary power supply device and the load.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI596863B (en) * | 2016-08-03 | 2017-08-21 | 宗盈國際科技股份有限公司 | Electronic apparatus with backup power supply and charging and discharging method of backup power supply |
| TWI629486B (en) * | 2016-09-14 | 2018-07-11 | 台達電子工業股份有限公司 | Current sensing apparatus and method of operating the same |
| US10505388B2 (en) | 2016-06-17 | 2019-12-10 | Delta Electronics, Inc. | Power converting device and control method thereof for providing backup power source |
| TWI685179B (en) * | 2019-01-03 | 2020-02-11 | 台達電子工業股份有限公司 | power supply system |
| US10855197B2 (en) | 2019-01-03 | 2020-12-01 | Delta Electronics, Inc. | Power supply system |
| TWI714310B (en) * | 2019-10-14 | 2020-12-21 | 緯創資通股份有限公司 | Power control method and related charging system |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777888B (en) * | 2013-10-14 | 2018-10-12 | 苹果公司 | Coordinate the energy consumption in control reduction computer system by the software and hardware of more power supplys |
| TWI509402B (en) * | 2014-04-21 | 2015-11-21 | Fsp Technology Inc | Apparatus and method for power supply |
| TWI606330B (en) * | 2014-05-14 | 2017-11-21 | 廣達電腦股份有限公司 | Server system and power switching method thereof |
| CN106611997B (en) * | 2015-10-23 | 2019-05-07 | 光宝电子(广州)有限公司 | Uninterruptible power supply system and method |
| JP6530508B2 (en) * | 2015-12-02 | 2019-06-12 | 東芝三菱電機産業システム株式会社 | Uninterruptible power system |
| CN106487092B (en) * | 2016-11-28 | 2019-02-05 | 国网山东省电力公司济宁供电公司 | Low-voltage power line equipment protection system and method |
| TWI658674B (en) * | 2017-01-20 | 2019-05-01 | 全漢企業股份有限公司 | Power supply system and power output module |
| DE102017108516B3 (en) | 2017-04-21 | 2018-08-09 | Phoenix Contact Gmbh & Co. Kg | Uninterruptible power supply |
| TWI643425B (en) * | 2017-12-28 | 2018-12-01 | 台達電子工業股份有限公司 | Charging power system with low standby power consumption and method of controlling the same |
| CN110661236B (en) * | 2019-01-07 | 2022-01-25 | 台达电子企业管理（上海）有限公司 | Circuit breaker apparatus and system |
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| US10797581B1 (en) | 2019-03-25 | 2020-10-06 | Semiconductor Components Industries, Llc | Power supply system for controlling a ZVS parameter to optimize efficiency using artificial intelligence |
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| US11258374B2 (en) * | 2019-03-25 | 2022-02-22 | Semiconductor Components Industries, Llc | Power supply system for optimizing standby power using artificial intelligence |
| US10819143B1 (en) * | 2019-10-09 | 2020-10-27 | Acbel Polytech Inc. | Redundant power supply device and redundant power supply device protection control method |
| CN112993948A (en) * | 2021-02-23 | 2021-06-18 | 广西电网有限责任公司电力科学研究院 | Circuit and method for preventing relay protection misoperation in loop closing operation |
| CN115441740A (en) * | 2021-06-02 | 2022-12-06 | 超聚变数字技术有限公司 | Power supply module and electronic equipment |
| CN120566997B (en) * | 2025-08-04 | 2025-10-14 | 上海柴孚机器人有限公司 | Hot start control method, system and storage medium for standby drive of construction robot |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2947372B2 (en) * | 1991-04-25 | 1999-09-13 | 株式会社関電工 | Multifunctional power conversion system |
| US6169667B1 (en) * | 1998-09-25 | 2001-01-02 | Lucent Technologies, Inc. | Power system utilizing improved power converter |
| JP4396066B2 (en) * | 2001-08-07 | 2010-01-13 | 株式会社日立製作所 | Electric brake device |
| TWI320257B (en) * | 2005-11-21 | 2010-02-01 | Power adapter | |
| TWI333310B (en) * | 2005-11-21 | 2010-11-11 | Delta Electronics Inc | Uninterruptible power supply system |
| JP4931045B2 (en) * | 2006-06-06 | 2012-05-16 | 株式会社リコー | Power supply device and image forming apparatus |
| TWI349407B (en) * | 2007-04-13 | 2011-09-21 | Delta Electronics Inc | Uninterruptible power supply and method for controlling same |
| JP2008306799A (en) * | 2007-06-05 | 2008-12-18 | Canon Inc | Power supply device, control method for power supply device, program, and storage medium |
| TW200908510A (en) * | 2007-08-08 | 2009-02-16 | Zippy Tech Corp | Power backup system |
| US7723866B2 (en) * | 2007-08-14 | 2010-05-25 | Zippy Technology Corp. | Power backup system |
| TWI527342B (en) * | 2011-08-19 | 2016-03-21 | 善元科技股份有限公司 | Power supply apparatus |
| TWI456616B (en) * | 2011-11-01 | 2014-10-11 | Delta Electronics Inc | Powre supply system with automatic transfer function and method of controlling the same |
| US9450452B2 (en) | 2012-04-03 | 2016-09-20 | Micorsoft Technology Licensing, LLC | Transformer coupled current capping power supply topology |
| US9190898B2 (en) * | 2012-07-06 | 2015-11-17 | Power Systems Technologies, Ltd | Controller for a power converter and method of operating the same |
| JP5482840B2 (en) * | 2012-07-23 | 2014-05-07 | ダイキン工業株式会社 | Power supply |
| US9240712B2 (en) * | 2012-12-13 | 2016-01-19 | Power Systems Technologies Ltd. | Controller including a common current-sense device for power switches of a power converter |
-
2013
- 2013-09-06 TW TW102132156A patent/TWI499167B/en active
-
2014
- 2014-03-28 US US14/228,369 patent/US9893561B2/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US10505388B2 (en) | 2016-06-17 | 2019-12-10 | Delta Electronics, Inc. | Power converting device and control method thereof for providing backup power source |
| TWI596863B (en) * | 2016-08-03 | 2017-08-21 | 宗盈國際科技股份有限公司 | Electronic apparatus with backup power supply and charging and discharging method of backup power supply |
| TWI629486B (en) * | 2016-09-14 | 2018-07-11 | 台達電子工業股份有限公司 | Current sensing apparatus and method of operating the same |
| TWI685179B (en) * | 2019-01-03 | 2020-02-11 | 台達電子工業股份有限公司 | power supply system |
| US10855197B2 (en) | 2019-01-03 | 2020-12-01 | Delta Electronics, Inc. | Power supply system |
| TWI714310B (en) * | 2019-10-14 | 2020-12-21 | 緯創資通股份有限公司 | Power control method and related charging system |
Also Published As
| Publication number | Publication date |
|---|---|
| US9893561B2 (en) | 2018-02-13 |
| TWI499167B (en) | 2015-09-01 |
| US20150069842A1 (en) | 2015-03-12 |
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